He says there is nothing new in the American position and that he expects a pretty calm reaction from Russia as long as the United States does not turn words into action.

VOA: standard.2010.07.05

Because these molecules can span across the membrane from outside to inside, they're in just the right position to take messages that they receive from outside the cell and transmit them through the membrane into the cells internal apparatus, and that's what they do.

因为这些分子能穿过细胞膜,连通细胞内外,它们所在的位置非常适于接受信息,它们能将外界获得的信息,通过细胞膜传递给细胞器,这正是它们的功能

耶鲁公开课 - 生物医学工程探索课程节选

It also tells you that if you compress the spring, compress it means x is now-- x is measured from this position, where the spring is neither compressed nor expanded.

它还能告诉你,如果压缩弹簧,压缩就意味着现在 x...,x 是从这个位置开始算的,在这个位置弹簧既没有压缩也没有伸长

耶鲁公开课 - 基础物理课程节选

"It is two separate issues; we clarified our position from the beginning, that this moratorium is only for 10 months and direct talks is a very important issue for both sides,not only for Israel.

VOA: standard.2010.07.28

If that protein is an enzyme then you've and you've switched it from an 'off' position where it's not catalyzing a reaction to an 'on' position where it is, you've changed the biochemical state of the cell, you've changed the chemical reactions that can occur within the cell, and you've changed its behavior.

如果这种蛋白是一种酶的话,你就能够将酶从无催化作用的静息态,激活至能催化反应的激活态,你改变了细胞的生化状态,也改变了细胞内发生的化学反应,改变了细胞的行为

耶鲁公开课 - 生物医学工程探索课程节选

"Naturally as a finance minister my advise to the governor of RBI would be that if you are in a position keeping in view the availability of the foreign exchange you buy that , and from that perspective it has been bought,".

VOA: standard.2009.11.06

"I think the position of providing a middle ground for President Bashir, not denying the ICC decision, but asking for it to be postponed, and giving Bashir some breathing space is a way for the regimes such as Egypt and Saudi Arabia to indicate that they do have a position independent from the West,".

VOA: standard.2009.03.26